12151416 has 64 divisors (see below), whose sum is σ = 31842720. Its totient is φ = 3860480.

The previous prime is 12151409. The next prime is 12151417. The reversal of 12151416 is 61415121.

It is a junction number, because it is equal to n+sod(n) for n = 12151392 and 12151401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12151417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52036 + ... + 52268.

Almost surely, 2^12151416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12151416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15921360).

12151416 is an abundant number, since it is smaller than the sum of its proper divisors (19691304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12151416 is a wasteful number, since it uses less digits than its factorization.

12151416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 332 counting only the distinct ones).

The product of its digits is 240, while the sum is 21.

The square root of 12151416 is about 3485.8881221290. Note that the first 3 decimals coincide. The cubic root of 12151416 is about 229.9017601872.

Adding to 12151416 its reverse (61415121), we get a palindrome (73566537).

The spelling of 12151416 in words is "twelve million, one hundred fifty-one thousand, four hundred sixteen".